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   "metadata": {},
   "source": [
    "<center><img src=\"./image/CLBLOGO.jpg\" alt=\"创乐博\" style=\"width: 300px;\"/></center>\r\n",
    "\n",
    "# 14.雨滴探测传感器实验验\n",
    "\n",
    "@----湖南创乐博智能科技有限公司---<br>\n",
    "@ 件：：34.雨滴探测传感器实验验.ipynb <br>\n",
    "@ 版本：V2.0 <br>\n",
    "@ author: zhulin <br>@ \n",
    "说:雨滴探测传感器实验制! <rb>"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "f5f58331-df2f-409c-b08b-1401a5100a80",
   "metadata": {},
   "source": [
    "## 1.导入必要的库文件"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "83db1301-789c-4820-af1b-3a55d0b03465",
   "metadata": {},
   "outputs": [],
   "source": [
    "from gpiozero import Button, MCP3008\n",
    "from gpiozero.tools import absoluted, scaled\n",
    "from signal import pause\n",
    "from time import sleep"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bf81ed90-ea51-4447-b522-85494d089b54",
   "metadata": {},
   "source": [
    "## 2.定义使用通道和雨滴传感器数字量IO口"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "20561d89-e334-41e0-9358-07f9b385ffdd",
   "metadata": {},
   "outputs": [],
   "source": [
    "makerobo_DO = Button(17)     # 雨滴传感器数字管脚\n",
    "pot = MCP3008(channel=0)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "9e8dc3b8-858e-4434-8062-f44edb629870",
   "metadata": {},
   "source": [
    "## 3.初始化工作及中断函数定义"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "660f4219-a6c7-4511-a918-14be8f04e8ee",
   "metadata": {},
   "outputs": [],
   "source": [
    "def pressed():        # 有雨滴\n",
    "    print ('')\n",
    "    print ('   **********************')\n",
    "    print ('   * makerobo Raining!! *')\n",
    "    print ('   **********************')\n",
    "    print ('')\n",
    "\n",
    "def released():\n",
    "    print ('')\n",
    "    print ('   ************************')\n",
    "    print ('   * makerobo Not raining *')\n",
    "    print ('   ************************')\n",
    "    print ('')\n",
    "\n",
    "makerobo_DO.when_pressed = pressed\n",
    "makerobo_DO.when_released = released"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "208b4e52-3fe4-4815-b17d-f09f435cc846",
   "metadata": {},
   "source": [
    "## 4.循环函数"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2624aada-828e-4e8e-9995-d4397180d2f6",
   "metadata": {},
   "outputs": [],
   "source": [
    "def MAP(x, in_min, in_max, out_min, out_max):\n",
    "    return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min\n",
    "    \n",
    "def makerobo_loop():\n",
    "    while True:\n",
    "        pot_vlue =  pot.value\n",
    "        pot_vlue = MAP(pot_vlue,0,1,0,100)\n",
    "        print (\"{:.2f}\".format(pot_vlue))   # 打印出AIN0的模拟量数值\n",
    "        sleep(0.2)                  # 延时200ms\n",
    "    "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "04b01200-b8f4-4906-9fef-ee5921375822",
   "metadata": {},
   "source": [
    "## 5.主程序"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "45e18609-d482-4008-9b7f-64ee3599f522",
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "# 程序入口\n",
    "if __name__ == '__main__':\n",
    "    try:\n",
    "        makerobo_loop()         #  循环函数\n",
    "    except KeyboardInterrupt:   #  当按下Ctrl+C时，将执行destroy()子程序。\n",
    "        makerobo_DO.close()     #  释放资源"
   ]
  }
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